Apparatus for producing mineral fibres from silicate raw materials such as basalt, in particular by blast drawing
CA 1264225 C · Owner: Grunzweig & Hartmann Aktiengesellschaft · Inventors: Bengl, Dieter; Horres, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Apparatus for producing mineral fibres from silicate raw materials such as basalt, in particular by blast drawing, In the production of bonded mineral fibre wool binder is injected in the chute (16) onto the fibres as, a result of which there is a tendency for the fibres to adhere to the walls of the chute (16) and to form encrustations due to binder becoming cured in the course of time. To avoid such encrustations, which can cause production shortfalls, the circumferential walls (18 20) of, the chute are constructed as jacketed walls and are cooled by passing cooling liquid in the hollow space (30) between the inner and outer surface portions (28 29). It, has been found, …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 9, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.